Saturday, October 24 was my first day covering the campaigns, just a few days after I arrived in Iowa. The day started early in Ames, IA at the Alpha Gamma Roh fraternity at Iowa State University where Ben Carson made a stop for a town hall on the front lawn. Carson hasn't spent much time in Iowa but had just overtaken Donald Trump in the polls. Afterwards I followed him to a book signing a few miles away.

Republican presidential candidate Dr. Ben Carson speaks during a breakfast at the Alpha Gamma Roh fraternity at Iowa State University in Ames, Iowa.

Supporters listen as Candy Carson, wife of Republican presidential candidate Dr. Ben Carson, sings the national anthem during a breakfast at the Alpha Gamma Roh fraternity at Iowa State University in Ames, Iowa.

A supporter of Republican presidential candidate Dr. Ben Carson listens as the candidate speaks during a breakfast at the Alpha Gamma Roh fraternity at Iowa State University.

Republican presidential candidate Dr. Ben Carson speaks during a breakfast at the Alpha Gamma Roh fraternity at Iowa State University in Ames, Iowa.

Republican presidential candidate Dr. Ben Carson greets supporters after a speech at the Alpha Gamma Roh fraternity at Iowa State University in Ames, Iowa.

Republican presidential candidate Dr. Ben Carson answers questions from the media after a town hall in Ames, IA.

Republican presidential candidate Dr. Ben Carson leaves a breakfast at the Alpha Gamma Roh fraternity at Iowa State University in Ames, Iowa.

Republican presidential candidate Dr. Ben Carson signs copies of his book "A More Perfect Union" at a book tour stop in Ames, Iowa.

Supporters of Republican presidential candidate Dr. Ben Carson congregate near Dr. Carson's book tour bus after a book signing.

Before my next event, I met up and had lunch with Steve Crowley, a staff photographer and friend at The New York Times' Washington, D.C. bureau. Steve has always been supportive so we talked shop and planning before parting ways. I went to wait on the start of the Bernie Sanders rally and march in Des Moines, my last assignment of the day. I chatted with campaign staff and was able to arrange better access for more dynamic photos.

Democratic presidential candidate Sen. Bernie Sanders speaks at a campaign rally ahead of a march across the Iowa Women of Achievement Bridge in downtown Des Moines, IA.

Members of the Quad Cities Metropolitan Youth Program listen as their drumline warms up the crowd ahead of a campaign rally and march for Sen. Bernie Sanders in Des Moines, IA.

Democratic presidential candidate Sen. Bernie Sanders speaks at a campaign rally ahead of a march across the Iowa Women of Achievement Bridge in downtown Des Moines, IA.

Democratic presidential candidate Sen. Bernie Sanders speaks at a campaign rally ahead of a march across the Iowa Women of Achievement Bridge in downtown Des Moines, IA.

As the march was still going on I got a text that one of the two other freelancing for Reuters injured himself at a rally and I was assigned to cover the event with the remaining shooter. Scott Morgan and I split duties, with me in the buffered area near the stage and Scott working the perimeter. Bernie Sanders, Hillary Clinton, and Martin O'Malley all spoke and tried to rally their supporters and win new ones and when all was said and done, I wrapped up a 16 hour day covering the campaigns.

Democratic presidential candidate former Secretary of State Hillary Clinton greets the crowd as she walks to the stage at the Jefferson-Jackson Dinner in Des Moines, Iowa.

Democratic presidential candidate Martin O'Malley smiles at the crowd while speaking at the Jefferson-Jackson Dinner in Des Moines.

Katy Perry cheers for Democratic Presidential candidate Hillary Clinton at the Jefferson-Jackson Dinner in Des Moines, Iowa. Perry performed earlier in the day at Hillary Clinton's rally just a few blocks away.